Design flaws don't come much more basic than this. The FAA has issued a Notice of Proposed Rulemaking that could require inspection and/or replacement of the seat belts in more than a dozen Socata aircraft. Seems the buckles come apart when they're jerked.
As AVweb reported last week, IFR approaches have been cancelled at three Texas airports and it seems the FAA has found a few more that don't meet its standards or have to be amended for any number of reasons. In fact, there were so many, they split it up into two lists. Check to see if your airport might be affected (before a dark and stormy night) by going to list one and list two.